Improvement in leather-scouring machines



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Letters Patent No. 108,782, dated November 1, 1870.

IMPROVEMENT IN LEATHER-SCOURING MACHINES.

- The Schedule referred to in these Letters Patent and making part ofthe same.

Iof this specification.

The drawing represents aside view, partly in section, of our improvedleather-scouring machine.'

'lhis mvcntion relates to a new manner of arranging a self -adjustingbed or table under the rotary scouring-cylinder of a leather-dressingapparatus, and to a novel method of securing the scouring-stones andbrushes iu alternate rows to the said cylinder.

The vinvention consists in supporting the adjustable bed by springs,andguidiug it, by means ot jointed pns'working in tubular sockets, sothat thereby the bed will be adjustable iu every.direction andautomatically held against the scouring-implements.

rlhe invention consists also in securing the scouringstones tothecylinder by means ofthe blocks to which the brushes are fastened, sothatthereby alternate rows `of stones and 'brushes arc produced..

in the drawing represents the scouring-cylinder. It is made ofmetal orother material, and carries stones B and brushes C on its rim. Thestones are enlarged toward their bases, and are wedged in place by thewooden orother blocks a, to which the brushes are secured, said blocksbeing, by means of bolts b b, secured to the cylinder, as shown. 1n thismanner the stones are securely held.

The rows of stones and brushes may be straight, laterally, or somewhatspiral', as may be desired. Each row is either entirely of stone andbrush, or' made of alternating sections of either, the next row havingthe opposite sections of the other material.

'lhc scouringvlinder is hung in a pendulum-flame,

D, or in ixed bearings.

.E is the adjustable bed, upon which the leather to be dressed orscoured is placed. This bed is arranged above ar fixed table, F,.audis,by springs c c underneath, held against and in contactwith thescouringcylinder. 'lhese springs are disposed in suitable man- T161'.

The motion of the adjustable bed is controlled by springs d, whichproject from the under side of said bed into hollow sockets e e, heldbythe table F. The

pins rl, however, are jointed, as at f, to give greater variety ofrnotion to the bed.

The upper face of the bed is concave, and over it'is stretched, by beingfastened to the ends, a sheet, V G, of rubber, leather, or otherflexible or seinieelastic material. for the material to-be treated.

The leather to be scoured'or dressed is placed upon the sheet CI, andthe same, by the springs e, held against the revolving cylinder, wherebythe desired object, under a suit-able degree of pressure, is fully:1ttained.

Having thus described ourlnventxon We claim as new and desire to secureby Lettersv Patentl. The yielding bed E, supported by springs c, and Iguided by jointed pins d, substantially as herein shown and described.

2. The sheet Gr, stretched over the' concave surface of the adjustablebed E, to constitute an elastic cushion thereon, substantially as hereinshown vand dcscribed. A Y

'3. The scouring-cylinder containing the stones and brushes in alternaterows, the stones being secured by the blocks a, to which the brushes arefastened, substantially as herein shown and described.

' HECTOR G. HAVEMEYER.

. DAVID l. BURDON.

Vitnesses:

`A. V. Bumsen,

GEO. W. Menen,

This sheet constitutes au elasticA cushion l

